Tecfluid CU Series - Manual (Page 8)

8
2
The relay outputs are SPDT relays with potential free contacts (see characteristics in
page 40).
The state of the relay contacts corresponds to the relay at rest
.
The relay contacts are not protected in any way, and therefore they must be installed
externally
as required in the application , taking into account the limitations of the
characteristics of such contacts. In the case of having inductive loads, and to extend the
working life of the contacts of the relays, it is recommended to use overvoltage protection
(VDR for AC and diodes for DC loads). In all cases a fuse or some type of short circuit
protection against short circuits,
should always be provided according to the needs of the
intended load.
2.1.3 Analog output wiring
Terminal
+ mA (positive)
- mA (negative)
INSTALLATION OF THE ELECTRONIC CONVERTER
Passive mode: pins 2&3
Active mode: pins 1&2